- The length of time for which a person or animal lives or a thing functions: the human lifespanMore example sentences
- As humans lengthened lifespans with better nutrition and hunting skills, childhood also lengthened.
- They are slow-breeding and long-lived animals, achieving lifespans of 70 years or so.
- I suggested that extending human lifespans might lead to extended creativity.
More definitions of lifespanDefinition of lifespan in:
- The US English dictionary